Sökning: "Öien"

Visar resultat 1 - 5 av 6 avhandlingar innehållade ordet Öien.

1. 1. Leg ulcer management in primary care with special reference to pinch grafting

   Författare :Rut Öien; Malmö Institutionen för kliniska vetenskaper; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; rheumatology locomotion; Skelett; muskelsystem; reumatologi; General practice; medical training; Allmän medicinsk utövning; medicinsk utbildning; muscle system; Skeleton; diameter product; grid tracing; digital planimetry; ulcer size; pain relief; vasculitis; rheumatoid arthritis; cost analysis; healing rate; pinch grafting; aetiology; prevalence; Leg ulcer; primary care;

   Sammanfattning : Wound management in primary and community care was investigated throughout a period of 12 years within a well-defined population in one county in Southern Sweden. The estimated prevalence of chronic leg and foot ulcers was 0.19% in 1998 and the mean prevalence was 0.20% during the years 1994-1998. LÄS MER

3. 2. Design and Performance of Packet Retransmission Diversity Scheme for Wireless Networks

   Författare :Mikael Gidlund; Geir E Øien; Mittuniversitetet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electronics; Elektronik;

   Sammanfattning : High data-rate wireless access systems are currently under discussion since the demand for wireless multimedia communication is rapidly increasing due to strong advances in wireless Internet services. Reliable high-speed data communications is one of the major challenges with regards to harsh conditions. LÄS MER

4. 3. Adaptive MIMO Systems with Channel State Information at Transmitter

   Författare :Jinliang Huang; Svante Signell; Øien Geir; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; adaptive modulation; adaptive power allocation; average spectral efficiency; MIMO; BER.; Telecommunication; Telekommunikation;

   Sammanfattning :  This dissertation presents adaptation techniques that can achieve high spectral efficiency for single user multiple-input multiple-output (MIMO) systems. Two types of adaptation techniques, adaptive modulation and adaptive powe allocation, are employed to adapt the rate and the transmit power to fading channels. LÄS MER

5. 4. Trustful Relationships and School Development

   Författare :Ulf Jederlund; Rune Hausstätter; Tatjana von Rosen; Pär Larsson; Roald A. Øien; Stockholms universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; trust; school development; collective learning; relational competence; relational pedagogy; teacher-student relationship quality; student self-efficacy; school trust; tillit; skolutveckling; kollektivt lärande; relationskompetens; relationell pedagogik; lärar-elevrelationer; elevers självtillit i skolan; skoltillit; specialpedagogik; Special Education;

   Sammanfattning : Methods other than averages from national tests, grades and levels of eligibility for higher education to evaluate the quality of education and school development are called for. In this dissertation is examined how a conscious effort to develop trustful relationships and mutual interaction among all actors in schools may contribute to increased well-being, community and strengthened learning processes for both students and teachers. LÄS MER

7. 5. Quantized Feedback for Slow Fading Channels

   Författare :Thanh Tùng Kim; Mikael Skoglund; Geir Øien; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fading channels; information rates; feedback communications; diversity methods; MIMO systems; power control; adaptive systems; quantization.; Telecommunication; Telekommunikation;

   Sammanfattning : Two topics in fading channels with a strict delay constraint and a resolution-constrained feedback link are treated in this thesis. First, a multi-layer variable-rate single-antenna communication system with quantized feedback, where the expected rate is chosen as the performance measure, is studied under both short-term and long-term power constraints. LÄS MER